EP 0980878 A1 20000223 - Molecular weight regulation of cis-1,4-polybutadiene using carboxylates
Title (en)
Molecular weight regulation of cis-1,4-polybutadiene using carboxylates
Title (de)
Verfahren zur Kontrolle des Molekulargewichts von cis-1,4-Polybutadien unter Verwendung von Carboxylaten
Title (fr)
Procédé de régulation du poids moléculaire de cis-1,4-polybutadiène en utilisant des carboxylates
Publication
Application
Priority
US 13658398 A 19980819
Abstract (en)
There is disclosed a process for the regulation of the molecular weight of high cis polybutadiene prepared by polymerizing butadiene under solution polymerization conditions employing as the catalyst system a mixture of (a) organoaluminum compounds; (b) organonickel compounds; and (c) fluorine containing compounds; said polymerization being conducted in the presence of alkali or alkaline earth metal salts of organic carboxylic acids.
IPC 1-7
IPC 8 full level
C08F 2/06 (2006.01); C08F 2/38 (2006.01); C08F 4/70 (2006.01); C08F 136/06 (2006.01)
CPC (source: EP US)
C08F 136/06 (2013.01 - EP US)
Citation (search report)
[A] EP 0093075 A1 19831102 - GOODYEAR TIRE & RUBBER [US]
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
US 5955553 A 19990921; DE 69914984 D1 20040401; DE 69914984 T2 20041209; EP 0980878 A1 20000223; EP 0980878 B1 20040225; ES 2216388 T3 20041016; JP 2000063409 A 20000229; JP 4251416 B2 20090408
DOCDB simple family (application)
US 13658398 A 19980819; DE 69914984 T 19990816; EP 99115187 A 19990816; ES 99115187 T 19990816; JP 22864499 A 19990812